Abstract Book - 3rd International Symposium on Medicinal Plants ...

carveol and δ- selinene, but inhibited others e.g. valencene. (ii) In the case of Maltaise/ Citrumelo
macrophylla, cachexia reduced three times the quantity of limonene and nootkatone than exocortis
and (iii) Maltaise/ Citrumelo swingle contained five folds more of linalol and two folds more of
terpinen-4-ol and terpineol, than Maltaise/ Citrus macrophylla.
Keywords: Cachexia, essential oils, exocortis, maltaise, rootstocks.
5.16 Repellence and Anti-Oviposition Activities of Plant Products on
Greenhouse Whitefly
Dehghani , Mahsa 1, 2 ., and Ahmadi , Kamal 1
1 Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman.
2 Member of Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran.
<strong>Abstract</strong>: The greenhouse whitefly, Trialeurodes vaporariorum Westwood (Homoptera:
Aleyrodidae), is an important cosmopolitan pest of many crops. Chemical control for the
management of greenhouse whitefly has resulted in development of resistance and outbreak of
population. So, Secondary metabolites of some plants have been successfully used for integrated
control of the pests. The present study investigated the repellent and anti-oviposition activities of
essential oils and aqueous extracts from Achillea millefolium and Thymus vulgaris against this pest
in greenhouse condition. The cucumber plants with 5 fully expanded leaves were sprayed with the
chemicals at 40 µl/ml concentration and control plants were treated with distilled water. Also, the
essential oil of A. millefolium at the same volume (5 ml) (for avoid the phytotoxicity effect on the
cucumber plant) were sprayed on the special filter paper (2×4 cm) attached at the petiole plant.
Four treated plants with the plant derived chemical and four control plants were placed randomly in
to a cage (60 × 60 × 80 cm). Three days after spraying with the plant products, approximately 250
whitefly adults were released into the cages. Then three and six days after infesting with the
greenhouse whitefly, the number of eggs and adults on detached cucumber leaf were recorded.
Each experiment was repeated two times at the same greenhouse condition. The results revealed
that all plant products affected on the oviposition and tropism behaviors of greenhouse whitefly.
Among different treatments, the highest anti-oviposition effect was calculated by aqueous extracts
of T. vulgaris (62.87%) six days after treatments. After 9 days, the anti-oviposition effect caused by
all the chemicals ranged from 41.80% to 49.33% in aqueous extract and essential oil of A.
millefolium, respectively. Moreover, the aqueous extract of A. millefolium had highest repellent
effect (52.54%) six days after treatments. Also, to compare repellent effect of the chemicals on
greenhouse whitefly, the highest repellent effect observed with the essential oil of A. millefolium
(48.07%) nine days after treatments. These results showed that A. millefolium and Thymus
vulgaris had relatively long lasting repellent and anti-oviposition activities on the adults of the
greenhouse whitefly.
Key words: Achillea millefolium, anti-oviposition activities, greenhouse whitefly, Thymus vulgaris.,
5.17 Insecticidal Activities of Five Plant Derived Chemicals on Thrips tabaci
Lindeman
Hakimeh Najmizadeh 1,2 , Kamal Ahmadi 1 , and Asieh salari 1,2
1 Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman.
2 Member of Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran.
<strong>Abstract</strong>: Natural compounds originating from plants might be potential alternative pesticide that
are not persistent in the environment and are safe to non-target organisms and human for use in
sustainable agriculture. During this project, ethanolic extracts (30 µl mL -1 ) of Melia azedarach L.
(Fruits), Peganum harmala L. (seeds), Calendula officinalis L. (seeds), Ferula assafoetida L.
(Resin) and Cercis siliquastrum L. (seeds) were applied against 1-2 and 5-6 day old of Thrips
tabaci Lindeman. All the experiments were conducted by spray test bioassay in laboratory and
ethanol (95%) was used as control treatments. The results indicated that all the used plant derived
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